I've created a world map, using DataMaps.
My aim is to asynchronously show and hide arcs on the map, based on some API data.
What have I already tried
I am calling my API
every 5 seconds and push the response data into the map. (This will be replaced by asynchronous calls in the future)
In my example below, the arcData array
represents my API
response.
I am able to access the arcs via DOM manipulation
. In my case I am using d3.selectAll('path.datamaps-arc').transition().duration(3500).style("opacity", 0);
to slowly fade out all arcs and delete them afterwards.
var arcData = //Test Data
[
{
origin:
{
latitude: 52.520008,
longitude: 13.404954
},
destination: {
latitude: 37.618889,
longitude: -122.375
}
},
{ origin:
{
latitude: 52.520008,
longitude: 13.404954
},
destination: {
latitude: 25.793333,
longitude:-80.290556
}
},
{
origin:
{
latitude: 52.520008,
longitude: 13.404954
},
destination: {
latitude: 35.877778,
longitude: -78.7875
}
}
];
$(document).ready(function() {
var map = new Datamap({ //create data map
element: document.getElementById('container'),
fills: {
defaultFill: "#343a40",
}
});
//call API every 4 seconds [Workaround for this fiddle]
setInterval(function() {
//add arcs to map
map.arc(arcData, {strokeWidth: 2, animationSpeed: 1000, strokeColor: '#b1dd00'}); // add arc Data
//Remove all arcs [should be replaced by a function that asynchronously hides single arcs after x seconds]
d3.selectAll('path.datamaps-arc').transition().duration(3500).style("opacity", 0);
d3.selectAll('path.datamaps-arc').transition().delay(3500).remove();
}, 4000);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/topojson/1.6.9/topojson.min.js"></script>
<script src="https://datamaps.github.io/scripts/datamaps.world.min.js"></script>
<div id="container" style="position: relative; width: 500px; height: 300px;"></div>
This solution basically works but:
My Problem
All arcs are hided at the same time. If i asynchronously call the API in the future, there will be a conflict when the arc is currently drawing, and meanwhile the delete process is triggered.
What I want
A solution that I can access every arc by some identifier and separately delete them after they are fully drawed.
from DataMaps / asynchronously hide arcs
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